First flooring sag - what is acceptable?

[readiescards]

Is this sag in the chipboard first floor covering anything to be concerned about?

 

Will be under carpet eventually

 

Thanks

Paul

[ProDave]

It's not the sag that bothers me so much as why it is soaking (no doubt the cause for the sag?)   Unless it's weyrock or similar, I would not have laid the flooring until the building was properly watertight.
 

[readiescards]

Been a lot of rain and no windows yet. Floor was laid by main contractor maybe 4 months ago way before roof was put up. 

 

I believe it is waterproof chipboard, brand unknown

[ProDave]

I would get something over those window openings. while waiting for my windows to arrive, the openings were sheeted with OSB to keep the rain out.

 

That looks just like "ordinary" chipboard to me. Even the green "waterproof" stuff won't stand up to much. the only one that will is something like Weyrock (the name will be clearly printed on it) that has a sort of grey waterproof coating.

 

Get the windows covered, let it dry out and see what it is like.  Put a straight edge over it and see if the joints have swelled.

 

[readiescards]

I finally got my temp windows in last weekend (the sag picture was taken a bit before).

Internorm coming to site Monday :-)

 

Two (and just two of the boards) have a hard grey coating, will go to site and have a proper look

[ProDave]

I would be having a word with the contractor and telling him he put down the wrong boards to be exposed and you expect them to rectify the problem at their expense.

 

Nice looking house by the way.
 

[Tennentslager]

Yes, lovely house.

Strange ghostly monster lurking by the chimney on the left though, best give 'who you gonna call' a bell to get rid?

[Crofter]

Assuming it is 22mm chipboard, it should be OK up to 600 centres.

But, as others have said, that amount of water is NOT OK.

[Oz07]

Looks like egger protect to me?

 

your flooring isn't sagging it's your joints swelling. Sand back before carpeting if worried about feeling thru. 

 

This egger is garunteed weather proof for about 4 weeks

[Oz07]

Oh just seen 4 months!

[readiescards]

Here's the only writing I can find on an unused board, so yep appears to be Egger E1 P5.  

 

Thanks for comments will 'discuss'.  

[Construction Channel]

does the top have a plasticky coating on it?, usually grey with a slight texture to it

if so I think this is what oz is talking about and should be ok at its core, our managers keep making us put it down before the roof is on because it saves on temporarily boarding the joists for the bricks to build the second lift,

 

we moan like hell about it because as you can see it does swell at the joints and any open cuts around stair wells, the swelling will probably be taken out by the underlay if you are having carpet but that still doesnt make it right, sanding it flat is probably the way to go.

 

from the way it has soaked in in the first picture i would say they are not those boards and are just moisture resistant, it might still be ok but if I'm honest i wouldn't like to put my name to it

[Oz07]

Yeh look up egger p5 online OP. Looks like it has been used with right glue aswell. There are 2 types 1 with film as said above but both are waterproof. Give it a good scrape down now. Run your planer or sand any joints which you feel are protruding excessively. I'd of thought it will be ok. 

[readiescards]

Am glad to report, with the underlay and carpets on it feels fine upstairs :-)